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Elena L [17]
3 years ago
11

Which is the most efficient way to solve this equation?

Mathematics
1 answer:
Maru [420]3 years ago
7 0

Answer: isn't it 21 then?

Step-by-step explanation:

kinda bad at math haha

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Given the angles in the diagram, what is the measure of ∠C ?
Westkost [7]
Since quadrilaterals have interior angles that add up to 360, then subtract the known values from 360

360 - 90 - 90 - 146 = 64

Angle C = 64
8 0
3 years ago
Read 2 more answers
Veronica deposits $60 each week into an account that pays 3.05% interest compounded weekly for 15 years. How much will she have
den301095 [7]

Answer:

$59,321.62

Step-by-step explanation:

I'm going to assume that the 3.05% is a nominal rate

I'm also going to assume that there are 52 weeks in a year

To solve this equation we are going to use an annuity immediate and find the future value of these cash flows

We first need to find our new, effective interest rate which i will find by dividign .0305/52= .0006

If you don't have a financial calculator you will find the accumulated value of an annuity immediate through the following equation

\frac{(1+i)^n-1}{i}*pmt

Plug in our values to get

60(\frac{(1+.0006)^{780}-1}{.0006})

Compute this and get about $59,321.62

if you have any questions lmk

4 0
3 years ago
What is the value of the digit 4 in the number 834,539,267​
Mnenie [13.5K]

Answer:

4,000,000

Step-by-step explanation:

millions, thousands, hundreds

7 0
3 years ago
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84 is 24% of what number
Leokris [45]
84 = n × 24%
84 = n × 0.24             (24% = \frac{24}{100} = 0.24)
Divide by 0.24 to isolate the unknown number n
\frac{84}{0.24} =  \frac{0.24n}{0.24}
0.24 and 0.24 cancels out
350 = n

Check: 
350 × 0.24 = 84

84 is 24% of 350
8 0
3 years ago
a sound is sent at the bottom of a pond if echo is heard after 6 seconds calculate the depth of the pond .the speed of sound I'm
Mama L [17]

Answer:

Depth of the pond: 4494 m

Explanation:

  • if echo is heard after 6 seconds, it takes 3 seconds to reach to bottom of pond
  • so time will be 3 seconds and speed given 1498 m/s

Steps:

  • distance = speed * time
  • distance = 1498 * 3
  • distance = 4494 m
5 0
3 years ago
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